Hi, I've got VM's 70Mb broadband and have long since had problems with VoIP, which I think is due to high jitter. No matter which service I use, and no matter whether I use the SuperHub on modem mode with another router or I use the SuperHub on router mode, VoIP keeps cutting out or stuttering, making it pretty much unusable. It's fine when I tether to my mobile and use its connection - but it really doesn't like my VM connection. WiFi calling is also affected, so I can't use it either. Is there maybe a problem on the line?